feat(version): pretty print and group together version check results

Collect all check results in arrays and pretty print the results after
grouping them together based on out-of-date, up-to-date and failures.
Print a summary that shows a brief statistic about the results when
processing multiple check items.

Component: pkgctl version check
Component: pkgctl version upgrade
Signed-off-by: Levente Polyak <anthraxx@archlinux.org>

3 files changed, 145 insertions, 12 deletions

diff --git a/src/lib/common.sh b/src/lib/common.sh
index a93e906..9d5622e 100644
--- a/src/lib/common.sh
+++ b/src/lib/common.sh
@@ -36,9 +36,10 @@ if [[ -t 2 && "$TERM" != dumb ]] || [[ ${DEVTOOLS_COLOR} == always ]]; then
 	colorize
 	PURPLE="$(tput setaf 5)"
 	DARK_GREEN="$(tput setaf 2)"
+	UNDERLINE="$(tput smul)"
 else
 	# shellcheck disable=2034
-	declare -gr ALL_OFF='' BOLD='' BLUE='' GREEN='' RED='' YELLOW='' PURPLE=''
+	declare -gr ALL_OFF='' BOLD='' BLUE='' GREEN='' RED='' YELLOW='' PURPLE='' DARK_GREEN='' UNDERLINE=''
 fi
 
 stat_busy() {
diff --git a/src/lib/version/check.sh b/src/lib/version/check.sh
index 600a346..ddd400d 100644
--- a/src/lib/version/check.sh
+++ b/src/lib/version/check.sh
@@ -39,6 +39,11 @@ pkgctl_version_check() {
 	local pkgbases=()
 	local path pkgbase upstream_version result
 
+	local up_to_date=()
+	local out_of_date=()
+	local failure=()
+	local section_separator=''
+
 	while (( $# )); do
 		case $1 in
 			-h|--help)
@@ -87,7 +92,8 @@ pkgctl_version_check() {
 		pkgbase=${pkgbase:-$pkgname}
 
 		if ! result=$(get_upstream_version); then
-			msg_error "${pkgbase}: ${result}"
+			result="${BOLD}${pkgbase}${ALL_OFF}: ${result}"
+			failure+=("${result}")
 			popd >/dev/null
 			continue
 		fi
@@ -95,18 +101,49 @@ pkgctl_version_check() {
 
 		if ! result=$(vercmp "${upstream_version}" "${pkgver}"); then
 			result="${BOLD}${pkgbase}${ALL_OFF}: failed to compare version ${upstream_version} against ${pkgver}"
-			msg_error "${result}"
-
+			failure+=("${result}")
 			popd >/dev/null
 			continue
 		fi
 
-		if (( result > 0 )); then
-			msg2 "New ${pkgbase} version ${upstream_version} is available upstream"
+		if (( result == 0 )); then
+			result="${BOLD}${pkgbase}${ALL_OFF}: current version ${PURPLE}${pkgver}${ALL_OFF} is latest"
+			up_to_date+=("${result}")
+		elif (( result < 0 )); then
+			result="${BOLD}${pkgbase}${ALL_OFF}: current version ${PURPLE}${pkgver}${ALL_OFF} is never than ${DARK_GREEN}${upstream_version}${ALL_OFF}"
+			up_to_date+=("${result}")
+		elif (( result > 0 )); then
+			result="${BOLD}${pkgbase}${ALL_OFF}: upgrade from version ${PURPLE}${pkgver}${ALL_OFF} to ${DARK_GREEN}${upstream_version}${ALL_OFF}"
+			out_of_date+=("${result}")
 		fi
 
 		popd >/dev/null
 	done
+
+	if (( ${#failure[@]} > 0 )); then
+		printf "%sFailure%s\n" "${section_separator}${BOLD}${UNDERLINE}" "${ALL_OFF}"
+		section_separator=$'\n'
+		for result in "${failure[@]}"; do
+			msg_error " ${result}"
+		done
+	fi
+
+	if (( ${#out_of_date[@]} > 0 )); then
+		printf "%sOut-of-date%s\n" "${section_separator}${BOLD}${UNDERLINE}" "${ALL_OFF}"
+		section_separator=$'\n'
+		for result in "${out_of_date[@]}"; do
+			msg_warn " ${result}"
+		done
+	fi
+
+	# Show summary when processing multiple packages
+	if (( ${#pkgbases[@]} > 1 )); then
+		printf '%s' "${section_separator}"
+		pkgctl_version_check_summary \
+			"${#up_to_date[@]}" \
+			"${#out_of_date[@]}" \
+			"${#failure[@]}"
+	fi
 }
 
 get_upstream_version() {
@@ -194,3 +231,28 @@ nvchecker_check_error() {
 	printf "%s\n" "${errors[@]}"
 	return 1
 }
+
+pkgctl_version_check_summary() {
+	local up_to_date_count=$1
+	local out_of_date_count=$2
+	local failure_count=$3
+
+	# print nothing if all stats are zero
+	if (( up_to_date_count == 0 )) && \
+			(( out_of_date_count == 0 )) && \
+			(( failure_count == 0 )); then
+		return 0
+	fi
+
+	# print summary for all none zero stats
+	printf "%sSummary%s\n" "${BOLD}${UNDERLINE}" "${ALL_OFF}"
+	if (( up_to_date_count > 0 )); then
+		msg_success " Up-to-date: ${BOLD}${up_to_date_count}${ALL_OFF}" 2>&1
+	fi
+	if (( failure_count > 0 )); then
+		msg_error " Failure: ${BOLD}${failure_count}${ALL_OFF}" 2>&1
+	fi
+	if (( out_of_date_count > 0 )); then
+		msg_warn " Out-of-date: ${BOLD}${out_of_date_count}${ALL_OFF}" 2>&1
+	fi
+}
diff --git a/src/lib/version/upgrade.sh b/src/lib/version/upgrade.sh
index 704431a..26a5ccb 100644
--- a/src/lib/version/upgrade.sh
+++ b/src/lib/version/upgrade.sh
@@ -40,6 +40,7 @@ _EOF_
 pkgctl_version_upgrade() {
 	local path upstream_version result
 	local pkgbases=()
+	local exit_code=0
 
 	while (( $# )); do
 		case $1 in
@@ -88,21 +89,90 @@ pkgctl_version_upgrade() {
 		. ./PKGBUILD
 		pkgbase=${pkgbase:-$pkgname}
 
-		if ! upstream_version=$(get_upstream_version); then
-			die "Failed to get latest upstream version for %s" "${pkgbase}"
+		if ! result=$(get_upstream_version); then
+			result="${BOLD}${pkgbase}${ALL_OFF}: ${result}"
+			failure+=("${result}")
+			popd >/dev/null
+			continue
 		fi
+		upstream_version=${result}
 
 		if ! result=$(vercmp "${upstream_version}" "${pkgver}"); then
-			die "Failed to compare version %s against %s" "${upstream_version}" "${pkgver}"
+			result="${BOLD}${pkgbase}${ALL_OFF}: failed to compare version ${upstream_version} against ${pkgver}"
+			failure+=("${result}")
+			popd >/dev/null
+			continue
 		fi
 
-		if (( result > 0 )); then
-			msg_success "${BOLD}${pkgbase}${ALL_OFF}: upgrading from version ${PURPLE}${pkgver}${ALL_OFF} to ${DARK_GREEN}${upstream_version}${ALL_OFF}"
-
+		if (( result == 0 )); then
+			result="${BOLD}${pkgbase}${ALL_OFF}: current version ${PURPLE}${pkgver}${ALL_OFF} is latest"
+			up_to_date+=("${result}")
+		elif (( result < 0 )); then
+			result="${BOLD}${pkgbase}${ALL_OFF}: current version ${PURPLE}${pkgver}${ALL_OFF} is never than ${DARK_GREEN}${upstream_version}${ALL_OFF}"
+			up_to_date+=("${result}")
+		elif (( result > 0 )); then
+			result="${BOLD}${pkgbase}${ALL_OFF}: upgraded from version ${PURPLE}${pkgver}${ALL_OFF} to ${DARK_GREEN}${upstream_version}${ALL_OFF}"
+			out_of_date+=("${result}")
+
+			# change the PKGBUILD
 			pkgbuild_set_pkgver "${upstream_version}"
 			pkgbuild_set_pkgrel 1
 		fi
 
 		popd >/dev/null
 	done
+
+	if (( ${#failure[@]} > 0 )); then
+		exit_code=1
+		printf "%sFailure%s\n" "${section_separator}${BOLD}${UNDERLINE}" "${ALL_OFF}"
+		section_separator=$'\n'
+		for result in "${failure[@]}"; do
+			msg_error " ${result}"
+		done
+	fi
+
+	if (( ${#out_of_date[@]} > 0 )); then
+		printf "%sUpgraded%s\n" "${section_separator}${BOLD}${UNDERLINE}" "${ALL_OFF}"
+		section_separator=$'\n'
+		for result in "${out_of_date[@]}"; do
+			msg_warn " ${result}"
+		done
+	fi
+
+	# Show summary when processing multiple packages
+	if (( ${#pkgbases[@]} > 1 )); then
+		printf '%s' "${section_separator}"
+		pkgctl_version_upgrade_summary \
+			"${#up_to_date[@]}" \
+			"${#out_of_date[@]}" \
+			"${#failure[@]}"
+	fi
+
+	# return status based on results
+	return "${exit_code}"
+}
+
+pkgctl_version_upgrade_summary() {
+	local up_to_date_count=$1
+	local out_of_date_count=$2
+	local failure_count=$3
+
+	# print nothing if all stats are zero
+	if (( up_to_date_count == 0 )) && \
+			(( out_of_date_count == 0 )) && \
+			(( failure_count == 0 )); then
+		return 0
+	fi
+
+	# print summary for all none zero stats
+	printf "%sSummary%s\n" "${BOLD}${UNDERLINE}" "${ALL_OFF}"
+	if (( up_to_date_count > 0 )); then
+		msg_success " Up-to-date: ${BOLD}${up_to_date_count}${ALL_OFF}" 2>&1
+	fi
+	if (( failure_count > 0 )); then
+		msg_error " Failure: ${BOLD}${failure_count}${ALL_OFF}" 2>&1
+	fi
+	if (( out_of_date_count > 0 )); then
+		msg_warn " Upgraded: ${BOLD}${out_of_date_count}${ALL_OFF}" 2>&1
+	fi
 }